There were no options avilable on the SS, they all came with a manual transmission, analog dash, t tops, and a mostly black interior.
If a car is different than this then it is not an SS model.

Lacking the digital dash and fancy radio, power seats, and adjustable shocks they are slightly lighter than your normal 87-89 turbo.
The SS is commonly called the SE, but SS is the correct designation according to Nissan.

How do you tell for sure?
Open the hood and read the model plate that is located on the driver's strut tower.
All SS models have the trim designation of "SS" encoded in the model information.
The SS models all will read:
KHLZ31ST(N/U/V)C

myth: The SS featured the BW T5 transmission.fact: All SS models featured the same transmission as the regular 88 turbos.

myth: The SS had more power.fact: The SS had the same power as the regular 88 turbos.

myth: The SS had no speed limiter.fact: The SS had the same 137 mph speed limiter the rest of the 88 turbos had.

myth: The SS is all pearl white.fact: The wheels and the front lip are regular white. The mirrors and spoiler are the same metallic charcoal the rest of the trim is. The door handles are pearl white matching the body.